JE 361351S Piston BMW S50B30EU 86.25MM 12.5:1 (Single Piece Set) ymm_38 Top Material/Finish: None

Top Material/Finish: None

Promotes better fuel combustion and fuel system lubrication

All while mating snugly to the OEM shutter shroud requiring absolutely no cutting

866 Replacement Single Piston 274048S Replaced By 212435 Piston Pin Inside Diameter 0

The PWR cores eliminate heat soak and lower Intake Air Temperatures (IATs) much more efficiently than traditional Bar and Plate or Tube and Fin designs

JE 361351S Piston BMW S50B30EU 86.25MM 12.5:1 (Single Piece Set) ymm_38 Top Material/Finish: NoneDESCRIPTION: Piston Set, 2618, Dome, 3. 396 Bore, 1. 245 CD, 0. 827, Pin Dia, Set of 1. 3. 396 Bore (mm) 86. 25 Top Compression Ring Thickness 0. 0400 Second Compression Ring Thickness 0. 0480 Oil Ring Thickness 0. 111 Forging Type FSR Volume (cc) 3. 40 Series JE Pistons Piston Head Type Dome Pin Diameter (IN) 0. 827 Compression Height 1. 245 Make BMW Wrist Pin Style floating or press fit Floating Wall Type CHAMFERED Wall Thickness (IN) 0. 150 Ringset